Android Gingerbread OTA (over-the-air) update will be released to HTC T-Mobile G2 phones. The Android 2.3.4 (Gingerbread) will roll out to customers in waves over the coming weeks. The update provides the following enhancements and improvements.
+ Tell HTC app
+ Google Books added
+ Notification bar color scheme is changed to black
+ New battery indicator, phone, and web icons
+ Color-coded network icon and signal indicator added. Green when connected to Google servers. Grey when not connected.
+ Pressing the power key while on a call disables the proximity sensor
Improvements:
+ Wi-Fi calling improvements
+ New SMS and email notification improvements
+ Improvements to sending MMS from the Gallery

Important: Do NOT call T-Mobile to receive the update before September 1. The timeline for receiving the OTA cannot be expedited. T-Mobile cannot manually push the software to customers who ask to receive it.

Your HTC T-Mobile G2 phone will show a notification when you have received the update. Alternately, to check if your phone has the update, go to Settings > About Phone > System Updates.